Galileo satellites behaving beautifully

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Remember those dual Galileo satellites that a friends during Arianespace rocketed into circuit final week? They are doing intensely well, appreciate we really much.

Galileo satellites 9 and 10 are functioning perfectly, and a initial array of moody operations is stability as partial of LEOP – a vicious launch and early circuit phase.

The span are being stepped by an heated array of check-outs, confirmations, mode changes, configurations and health verifications by a corner ESA/CNES goal group operative around a time during ESOC, Darmstadt, Germany.

The group are now focussing on conducting a array of thruster browns designed to start a deposit of a dual satellites toward their aim orbital positions.

“The altogether goal standing is entirely nominal, and we conducted a initial burn, on 14 Sep during 16:58 UTC [18:58 CEST],” says Jérémie Benoist, co-Flight Director from CNES.

Each satellite will perform a array of 3 drift-start thruster burns, using anywhere from a few tens of seconds to a few tens of minutes. The second was achieved currently during 08:52 UTC (10:52 CEST), and went as planned.

“Following a browns achieved during a LEOP phase, a satellites will continue naturally drifting, finale adult in their final preferred operational orbits during about 23 222 km after another set of thruster burns, designed to grasp glorious positioning in orbit, around a finish of October,” says Liviu Stefanov, co-Flight Director from ESA.

With a glorious opening of a booster and a belligerent teams, a LEOP proviso during ESOC is foreseen to hang adult soon.

ESOC support continues

The stratagem phase, however, will continue even after a ESA/CNES LEOP group hands over a satellites to a Galileo Control Centre, nearby Munich, for slight operations.

Flight dynamics during ESA. Credit: ESA/J. Mai

Flight dynamics during ESA. Credit: ESA/J. Mai

This means that moody dynamics experts during ESOC will continue to calculate and yield a stratagem ‘products’ – a rarely minute devise for how prolonged and when a bake contingency be executed – to support a deposit stop and glorious positioning of a recently launched Galileo satellites.

“By then, many of a CNES operations engineers will have returned to Toulouse, and we will start anew a training duration for a subsequent set of Galileo satellites,” says Jérémie.

“Our team-mates during ESOC will do a same, and, for a subsequent launch, we’ll come together again to control a final make-believe training during a CNES control comforts in Toulouse.”

As partial of a altogether use supposing to Europe’s Galileo project, ESA and CNES teams are conducting a LEOPs alternately from Darmstadt and Toulouse.

“Once again, all is going really good with a corner group during ESOC,” says Liviu.

“Both Jérémie and we are really tender with their imagination and dedication, which, together with a near-perfect injection, have helped make this one of a smoothest Galileo LEOPs yet.”

The subsequent span of Galileo satellites are approaching to be launched in mid-December 2015.

Source: ESA Rocket Science blog